System Components
Cellwatch uses data collection modules to monitor your batteries, safely connected by fiber optic.
Battery Monitoring Unit (iBMU)
Computer Characteristcs
Operating System |
Microsoft Windows Operating System |
|---|---|
Software |
Cellwatch Applications |
Hard Drive |
60Gb (min) |
Physical Characteristics
Dimensions (H x W x D) |
3 1/2” (2U) x 19” x 21” |
|---|---|
Enclosure Material |
Steel with powder coating |
Color |
Black |
Mounting |
19” rack with optional wall mount kit |
Control Unit (CU)
Operating Specifications
Ambient Operating Temperature |
0C to 50C / 32F to 122F |
|---|---|
Storage Temperature |
10C to 80C / 50F to 176F |
Power Supply |
Manually switchable 110 VAC or 230 VAC |
Power Supply Range |
80 VAC to 135 VAC |
Power Supply Frequency |
50 Hz to 60 Hz |
Power Supply Rating |
Max 5VA (15mA quiescent current) |
Communications
RS485 Interface |
Input and Output with optional jumper |
|---|---|
Max Range |
2000 ft (619 m) Total bus length |
Fiber Optic Range |
150ft (50 m) CU to DCM, DCM to DCM |
Max CUs per RS485 bus |
31 |
Alarm Outputs
Output Relays |
4 relays, single contact, volts free |
|---|---|
Contact Rating |
30 vdc @ 8 amps max |
Electrical Isolation |
1500 vac |
Service Life |
50 million operations, typical |
Protection
Sensing Inputs |
Short circuit proof |
|---|---|
Insulation Resistance |
600 vdc |
Sensing Inputs
Temperature sensor |
Solid state probe |
|---|---|
Resolution |
0.05C |
Accuracy |
+/-1C |
Range |
2C to 80C / 35F to 176F |
Mounting |
5/16” (8mm) |
Current Sensor |
Solid state, ferrite core clamp |
Sensitivity |
1mV/1A |
Resolution |
0.5A (optional 1.25A) |
Useful range |
+/- 25 to 1000A (optional 50 to 2500A) |
Physical Characteristics
Dimensions |
(H x W x D) 4 3⁄4” x 11 7/8” x 11 3/4” |
|---|---|
Enclosure material |
Steel with powder coating |
Color |
Pebble Gray |
Data Collection Module (DCM)
Voltage Measuring Characteristics
Voltage measuring range |
0 to 60 volts |
|---|---|
Resolution |
15mV |
Accuracy |
2 volts nominal source +/-1.0% |
Protection
Transient suppression |
Up to 600V, 1 Kw at 100uS pulses |
|---|---|
Short Circuit |
5 amp max with in line fuses fitted |
Reverse Polarity Protection |
Any combination in any connection order, for any period of time within the rated voltage |
Ohmic value measuring Characteristics
Ohmic value measuring range |
0.25 to 25.9 mOhms |
|---|---|
Resolution |
10 uOhms |
Temp coefficient of reading |
3 uOhms/C (-5C to 80C / 23F to 176F at nominal 1 uOhm) |
Max DCMs per Control Unit |
254 |
DCM Connections
Fiber Optic Range |
Min 6”(150 mm) Max 150 ft (50 m) |
|---|---|
Input Cable Lengths |
Min 4”(100 mm) Max 16ft 6” (5 m) |
Temperatures
Operating temperature |
0C to 35C / 32F to 95F |
|---|---|
Storage temperature |
0C to 80C / 32F to 176F |
Power supply nominal |
4 x 2v cells up to 4 x 12v jars |
Power supply voltage |
Min 7 vdc Max 60vdc |
Operating current
Quiescent Current |
25 mA |
|---|---|
During ohmic test |
Additional 0.0027A/hr |
Physical Characterics
Dimensions (H x W x D) |
2 17/32” x 4 5/8” x 1 27/32” |
|---|---|
Mounting pads |
2 “3M Dual Lock” |
Enclosure Material |
Flame retardant ABS |
Color |
Black |
Generator Extender Kit
Operating Voltage |
12 Volts |
|---|---|
Operating temperature |
0C to 35C / 32F to 95F |
Storage temperature |
0C to 80C / 32F to 176F |
Communications |
Proprietary over CAT5 cable |
Max range |
4000 ft (1219 m) |
Fiber Optic Range |
150 ft (50 m) remote to DCM, DCM to remote |
Dimensions (H x W x D) |
|
Remote |
2 5/8” x 4 5/16” x 1” |
Master |
2 7/16” x 4 3/4” x 1 3/16” 62 mm x 122mm x 30mm |
